Method for issuing, redeeming, refunding, settling and revoking electronic voucher by using utxo-based protocol, and server employing same
US11397928B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2019 |
| Grant date | Jul 26, 2022 |
| Priority date | — |
| Expiry date | Jun 12, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q2220/00
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for issuing an electronic voucher, the method comprising: (a) a step in which a server checks whether or not (i) electronic voucher data, (ii) a public key of a specific issuer and (iii) a signature value of the specific issuer are valid; and (b) a step in which, if the validity check result is positive, the server registers or supports the registration of a function value associated with (i) the electronic voucher data, (ii) the public key of the specific issuer and (iii) the signature value of the specific issuer in a public blockchain network, and acquires or supports the acquisition of Txid indicating information on the location of the function value, registered in the public blockchain network, within the public blockchain network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.